Why does the Tiida's engine make loud noises when accelerating?

[Linda]

Here are the reasons why the Tiida's engine makes loud noises when the accelerator is pressed: 1. Too much engine oil, which increases the instantaneous working resistance of the engine, increases the rotational resistance of the crankshaft, reduces the engine's output power, and causes excess oil to enter the combustion chamber and participate in combustion. The result is that the vehicle burns oil, emits blue smoke, and increases fuel consumption. 2. The wrong type of engine oil. When changing the oil, be sure to go to a reputable shop and use genuine oil. Counterfeit or inferior oil can cause significant damage to the engine. Use the oil type recommended in the maintenance manual. 3. Engine overheating causes the engine to lose power. If the engine operates for a long time, causing the surface to overheat, the cooling system may fail. The first thing to do is to check the cooling system. If there is a problem with the cooling system, it may cause exhaust blockage, as the vacuum tube may break. At this time, steam or hot air may escape from the engine, resulting in some loud noises. 4. Internal engine problems, such as valve blockage, etc. The specific cause needs to be determined through inspection.